package org.speed.jdk;

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class LockDemo {
	
	
	public static void main(String[] args) {
		
		
		
		ReentrantLock reentrantLock = new ReentrantLock();
		
		reentrantLock.tryLock();
		
		
		reentrantLock.unlock();
		
	}

}
